Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales
In this study, we present the age scales for three Antarctic Peninsula (AP) ice cores: Palmer, Rendezvous, and Jurassic. The three cores are all intermediate-depth cores, in the 133–141 m depth range. Non-sea-salt sulfate ([nssSO 4 2− ]) and hydrogen peroxide (H 2 O 2 ) display marked seasonal varia...
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ftdoajarticles:oai:doaj.org/article:8718fad4141547e7b9f114e43926d9bc 2023-05-15T13:35:02+02:00 Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales B. Daniel Emanuelsson Elizabeth R. Thomas Dieter R. Tetzner Jack D. Humby Diana O. Vladimirova 2022-02-01T00:00:00Z https://doi.org/10.3390/geosciences12020087 https://doaj.org/article/8718fad4141547e7b9f114e43926d9bc EN eng MDPI AG https://www.mdpi.com/2076-3263/12/2/87 https://doaj.org/toc/2076-3263 doi:10.3390/geosciences12020087 2076-3263 https://doaj.org/article/8718fad4141547e7b9f114e43926d9bc Geosciences, Vol 12, Iss 87, p 87 (2022) Antarctic Peninsula chronology ice cores volcanism age-scales annual-layer counting water stable isotopes Geology QE1-996.5 article 2022 ftdoajarticles https://doi.org/10.3390/geosciences12020087 2022-12-31T09:46:30Z In this study, we present the age scales for three Antarctic Peninsula (AP) ice cores: Palmer, Rendezvous, and Jurassic. The three cores are all intermediate-depth cores, in the 133–141 m depth range. Non-sea-salt sulfate ([nssSO 4 2− ]) and hydrogen peroxide (H 2 O 2 ) display marked seasonal variability suitable for annual-layer counting. The Palmer ice core covers 390 years, 1621–2011 C.E., and is one of the oldest AP cores. Rendezvous and Jurassic are lower elevation high-snow accumulation sites and therefore cover shorter intervals, 1843–2011 C.E. and 1874–2011 C.E., respectively. The age scales show good agreement with known volcanic age horizons. The three chronologies’ start and end dates of volcanic events are compared to the volcanic events in the published WAIS Divide core. The age difference for the Palmer age scale is ±6 months, Rendezvous ±9 months, and Jurassic ±7 months. Our results demonstrate the advantage of dating several cores from the same region at the same time. Additional confidence can be gained in the age scales by evaluating and finding synchronicity of [nssSO 4 2− ] peaks amongst the sites. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula ice core Directory of Open Access Journals: DOAJ Articles Antarctic Antarctic Peninsula The Antarctic Geosciences 12 2 87 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctic Peninsula chronology ice cores volcanism age-scales annual-layer counting water stable isotopes Geology QE1-996.5 |
spellingShingle |
Antarctic Peninsula chronology ice cores volcanism age-scales annual-layer counting water stable isotopes Geology QE1-996.5 B. Daniel Emanuelsson Elizabeth R. Thomas Dieter R. Tetzner Jack D. Humby Diana O. Vladimirova Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales |
topic_facet |
Antarctic Peninsula chronology ice cores volcanism age-scales annual-layer counting water stable isotopes Geology QE1-996.5 |
description |
In this study, we present the age scales for three Antarctic Peninsula (AP) ice cores: Palmer, Rendezvous, and Jurassic. The three cores are all intermediate-depth cores, in the 133–141 m depth range. Non-sea-salt sulfate ([nssSO 4 2− ]) and hydrogen peroxide (H 2 O 2 ) display marked seasonal variability suitable for annual-layer counting. The Palmer ice core covers 390 years, 1621–2011 C.E., and is one of the oldest AP cores. Rendezvous and Jurassic are lower elevation high-snow accumulation sites and therefore cover shorter intervals, 1843–2011 C.E. and 1874–2011 C.E., respectively. The age scales show good agreement with known volcanic age horizons. The three chronologies’ start and end dates of volcanic events are compared to the volcanic events in the published WAIS Divide core. The age difference for the Palmer age scale is ±6 months, Rendezvous ±9 months, and Jurassic ±7 months. Our results demonstrate the advantage of dating several cores from the same region at the same time. Additional confidence can be gained in the age scales by evaluating and finding synchronicity of [nssSO 4 2− ] peaks amongst the sites. |
format |
Article in Journal/Newspaper |
author |
B. Daniel Emanuelsson Elizabeth R. Thomas Dieter R. Tetzner Jack D. Humby Diana O. Vladimirova |
author_facet |
B. Daniel Emanuelsson Elizabeth R. Thomas Dieter R. Tetzner Jack D. Humby Diana O. Vladimirova |
author_sort |
B. Daniel Emanuelsson |
title |
Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales |
title_short |
Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales |
title_full |
Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales |
title_fullStr |
Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales |
title_full_unstemmed |
Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales |
title_sort |
ice core chronologies from the antarctic peninsula: the palmer, jurassic, and rendezvous age-scales |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/geosciences12020087 https://doaj.org/article/8718fad4141547e7b9f114e43926d9bc |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula ice core |
genre_facet |
Antarc* Antarctic Antarctic Peninsula ice core |
op_source |
Geosciences, Vol 12, Iss 87, p 87 (2022) |
op_relation |
https://www.mdpi.com/2076-3263/12/2/87 https://doaj.org/toc/2076-3263 doi:10.3390/geosciences12020087 2076-3263 https://doaj.org/article/8718fad4141547e7b9f114e43926d9bc |
op_doi |
https://doi.org/10.3390/geosciences12020087 |
container_title |
Geosciences |
container_volume |
12 |
container_issue |
2 |
container_start_page |
87 |
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1766060269306380288 |